Hook up smallpox, according to the actual space needs, flexible design of the ceiling surface size. After fixing the keel system, it can be loaded and unloaded by hand without auxiliary tools, which is flexible and simple. The keel system is equipped with a windproof code structure, and its function can be strong in stormy weather. It is suitable for design into various decorative effects and shapes, and is widely used in places with high performance requirements for ceiling activities.